Using the power of three High efficiency solar panels, the Nekteck 20W Solar Charger is your new best friend when you’re far from home. Travel with ease using the charger’s bungee loops which attach to your backpack. Unfold the device and expose the 20 watt Sunpower solar panel, each section putting out approximately 800~1000mA under strong sunlight. Dual USB charging ports allow up to two devices to recharge at once at a maximum output current of 3 Amps total. No matter where you go, the Opteka